JP2012519546A5

JP2012519546A5 -

Info

Publication number: JP2012519546A5
Application number: JP2011553096A
Authority: JP
Filing date: 2010-03-03
Publication date: 2013-04-18
Anticipated expiration: 2030-03-03

Claims

A hub,
A needle secured to the hub, the needle having a proximal end and a distal end and having a lumen extending therebetween;
A pen needle assembly comprising:
The needle extends distally from the hub, and defines an exposed portion length in the range of about 5.0 to 9.0 mm between the distal end of the needle and the hub;
The hub has a strut formed around the needle, the strut having a first skin engaging surface facing the distal side, and the length of the exposed portion of the needle is the first Extending distally from the skin engaging surface of the
The hub defines a distally facing second skin engaging surface that at least partially surrounds the first skin engaging surface, wherein the second skin engaging surface is the first skin engaging surface. A pen needle assembly positioned on the proximal side of the skin engaging surface of the pen needle.

The assembly of claim 1, wherein the needle size is 25 gauge or larger.

The pen needle assembly of claim 2, wherein the needle is in the range of 20 to 25 gauge.

The pen needle assembly of claim 1, wherein the second skin engaging surface is discontinuous.

The pen needle assembly of claim 1, wherein the second skin engaging surface is continuous.

The second skin engaging surface of claim 1, wherein the second skin engaging surface is positioned proximally by a range of 0.07 inches to 0.10 inches of the first skin engaging surface. Pen needle assembly.

The needle has a blade-like surface extending proximally from the distal end, and the lumen terminates at a distal opening defined in the blade-like surface, and the blade-like shape within the needle. The pen needle assembly according to claim 1, wherein a length corresponding to a surface is in a range of 30% to 60% of the length of the exposed portion.

The pen needle assembly of claim 1, wherein the first skin engaging surface extends radially outward from the needle and terminates at a first diameter.

9. The second skin engaging surface defines a second diameter, and the ratio of the first diameter to the second diameter ranges from 0.25 to 0.58. A pen needle assembly according to claim 1.

The pen needle assembly of claim 9, wherein the ratio of the first diameter to the second diameter is 0.36.

The pen needle assembly of claim 9, wherein an inner edge of the second skin engaging surface defines the second diameter.

The pen needle assembly of claim 9, wherein an outer edge of the second skin engaging surface defines the second diameter.

A complex for use with a medical pen injector that needs to vibrate to prepare a drug contained therein for administration to a patient,
A pen needle assembly comprising a hub and a needle secured to the hub;
A shell configured to be releasably retained on the hub;
With
The shell is held on the hub so that the shell covers at least a portion of the needle, and the holding force is applied to the patient when the pen needle assembly is attached to a medical pen injector. A composite that is sufficiently large to leave the shell held by the hub when the medical pen-type syringe is vibrated to prepare the drug contained therein.

The composite of claim 13, wherein the needle extends distally from the hub and defines an exposed portion length of about 5.0 to 9.0 mm.

14. A composite according to claim 13, wherein the releasable retention is obtained by one or more of the group consisting of frictional engagement, fracture bond, mechanical bond, fusion and adhesion. body.

The composite of claim 13, wherein the shell includes a cup-shaped body having an interior formed to receive the pen needle assembly.

The body includes a shoulder defining a small diameter region in the interior configured to limit the extent to which the pen needle assembly is inserted into the body. Item 17. The complex according to Item 16.

18. The composite of claim 17, wherein the shoulder is configured to minimize clearance with a portion of the hub and limit contaminant entry from the shoulder.

The composite of claim 16, wherein the body has a distal end, and the distal end is spaced from the needle when the pen needle assembly is received in the body. body.

14. The composite of claim 13, further comprising a barrier sheet or film that is removably secured to the shell and surrounds the entire pen needle assembly with the shell.

A hub having first and second skin engaging surfaces, wherein the second skin engaging surface at least partially surrounds the first skin engaging surface and the first skin engaging surface A hub positioned at the proximal end of the surface;
A needle secured to the hub, the needle having a proximal end and a distal end and having a lumen extending therebetween;
A pen needle assembly comprising:
The needle extends distally from the hub, and an exposed portion length of about 5.0 to 9.0 mm is defined between the distal end of the needle and the hub;
The needle has a blade-like surface extending in a proximal direction from the distal end, and the lumen terminates at a distal opening defined in the blade-like surface. The pen needle assembly according to claim 1, wherein a length corresponding to the surface is in a range of 30% to 60% of the length of the exposed portion.

24. The assembly of claim 21, wherein the needle size is 25 gauge or larger.

23. The pen needle assembly of claim 22, wherein the needle is in the range of 20 to 25 gauge.